07_Chapter 07 - Click to edit Master subtitle style Ch 1 7....

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Unformatted text preview: Click to edit Master subtitle style Ch 1 7. M ANOVA 11 Ch 1 Decision Pr ocess 1. Research Objective 2. Research Design 3. Assumption Test 4. Estimating the MANOVA Model and Assessing Fit 5. Interpretation 6. Validation 22 Ch 1 1. Resear ch Objective Purpose Do respondents/objects in different categories differ in important characteristics? 33 Ch 1 2. Resear ch Design Measurement Dependent: metric Independent: non-metric 44 Ch 1 2. Resear ch Design Effects Main effect of each independent variable on dependent variables Dependent variables: attitude toward stats Independent variable 1: Gender (Male/Female) Do male/female students differ in attitude toward stats? Independent variable 2: State (PA/NJ/Non-US) Do PA/NJ/non-US students differ in attitude toward stats? Joint effect (interaction) of independent variables Gender x State Male PA students Female PA students Male NJ students Female NJ students Male non-US students Female non-US students 55 Ch 1 2. Resear ch Design Sample Size On average, 30 - 50 observations per category in the independent variables 66 Ch 1 2. Resear ch Design Division of the Sample Analysis subsample Develop the MANOVA model Holdout subsample Validate the MANOVA model 77 Ch 1 2. Resear ch Design Data: HBAT 200 Chapters 7 & 8.sav Independent: X1 (Customer Type: 1 = Less than 1 year, 2 = 1 to 5 years, 3 = over 5 years) and X2 (Industry Type: 0 = magazine, 1 = newspaper) Dependent: X19 - X21 Sample size Analysis subsample 3 categories in X1, on average 33 cases per category 2 categories in X2, on average 50 cases per 88 Ch 1 3. Assumption Test Linearity of the dependent variate Dependent variate Entire set of dependent variables Inter-correlations of the dependent variables in the variate Significance value < .05 99 Ch 1 10 Ch 1 11 This will randomly create either a 0 or a 1 in the cell. Move your cursor to the bottom right corner of the cell, and you will see a little + sign. Drag it down to create the other 199 random 0s or 1s. Ch 1 12 200 random 0s and 1s have been created. Next click on Copy . Ch 1 13 Ch 1 14 Ch 1 15 Ch 1 16 Ch 1 17 Ch 1 18 Ch 1 19 Ch 1 20 Ch 1 21 Analyze -> Correlate -> Bivariate Ch 1 3. Assumption Test Correlation Bivariate Correlations Inter-correlations of the dependent variables in the variate Partial Correlations Unique correlations between two specific variables Distance Redefine 0 correlation Introduced in 2005 22 Ch 1 23 Scroll down to locate X19 . Click on the arrow to enter X19 into Var iables . Ch 1 24 Repeat the same procedure to enter X20 and X21 into Var iables . Ch 1 3. Assumption Test Correlation Coefficients Pearson Metric variables Interval/ratio variables Kendall tau-b & Spearman Non-metric variables Ordinal variables 25 Ch 1...
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This note was uploaded on 06/18/2011 for the course MGT 600+ taught by Professor Shen during the Spring '11 term at Saint Joseph's University.

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07_Chapter 07 - Click to edit Master subtitle style Ch 1 7....

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